A review–unguided optical communications: Developments, technology evolution, and challenges

AAB Raj, P Krishnan, U Darusalam, G Kaddoum… - Electronics, 2023 - mdpi.com
This review paper discusses the complete evolution of free-space optical (FSO)
communication, also known as unguided optical communication (UOC) technologies, all the …

Drone detection and classification using deep learning

DK Behera, AB Raj - 2020 4th International Conference on …, 2020 - ieeexplore.ieee.org
This paper presents a systematic approach to drone detection and classification using deep
learning with different modalities. The YOLOv3 object detector is used to detect the moving …

Photonics radar based LSS targets' postures' mD and cadence frequency imaging using empirical wavelet transform technique

N Akhter, AAB Raj, K Prabu - The Imaging Science Journal, 2024 - Taylor & Francis
Developing a photonics radar to detect the combined multiple simultaneous-
behaviours/postures of low-slow-small (LSS) aerial targets and appropriately extracting their …

Development of RF-photonic system for automatic targets' nonlinear rotational/flapping/gliding signatures imaging applications

N Akhter, HC Kumawat… - Journal of Circuits …, 2023 - World Scientific
Nowadays, developing the radio frequency (RF)-photonic sensors suitable for several
Defence and civil applications is emerging due to its various unique advantages. In today's …

Intelligent System for Real time detection and classification of Aerial Targets using CNN

M Upadhyay, SK Murthy… - 2021 5th International …, 2021 - ieeexplore.ieee.org
The advancements in drone technology has led to increased usage of drones in civil and
military which poses significant security related challenges. The small size of drones and …

Detection and classification of UAV using propeller Doppler profiles for counter UAV systems

J Mazumder, AB Raj - 2020 5th International Conference on …, 2020 - ieeexplore.ieee.org
The purpose of this paper is to develop an electronic system which detects and classifies an
Unmanned Aerial Vehicle (UAV). For detection and classification of a target UAV, an X Band …

Beam steering and control algorithm for 5-18ghz transmit/receive module based active planar array

M Maddegalla, AAB Raj, GS Rao - … International Conference on …, 2020 - ieeexplore.ieee.org
With the advent of Active Electronically Scanned Array (AESA) technology in the design and
development of advanced multi-target handling Radar and Electronic Warfare (EW) systems …

Estimation of heart rate and respiratory rate using imaging photoplethysmography technique

N Singh, AAB Raj - 2020 International Conference on System …, 2020 - ieeexplore.ieee.org
Imaging-Photoplethysmography has gathered a great amount of recognition in recent
decades given to its simple, cost effective and non-contact multiparameter measurement …

Improved direction of arrival estimation using modified MUSIC algorithm

MM Gunjal, AAB Raj - 2020 5th International Conference on …, 2020 - ieeexplore.ieee.org
An estimation of the Direction of Arrival (DOA) is useful for direction-finding and locating the
direction of incoming radio waves. The Multiple Signal Classification (MUSIC) algorithm is …

Experimental study of sand-storm effect on digital fso communication link

S De, AAB Raj - … International Conference on Recent Trends on …, 2020 - ieeexplore.ieee.org
Over the last two decades, Free Space Optical (FSO) communication has become more and
more interesting topic of research, as an alternative to radio frequency communication. In …